MDRAO - Medical Device Reprocessing Association of Ontario Instrument Identification 1 — Questions and Answers
Question 1: A CSSD technician is sorting a general surgery set and encounters two pairs of scissors — one with short, thick blades and one with long, slender blades. Which statement correctly identifies these instruments?
- Both are Metzenbaum scissors; blade length varies by manufacturer only
- The short, thick-bladed scissors are Mayo scissors used for heavy tissue and sutures; the long, slender-bladed scissors are Metzenbaum scissors used for fine dissection (Correct answer)
- The long, slender-bladed scissors are Mayo scissors; the short, thick-bladed scissors are Metzenbaum scissors
- Blade thickness is irrelevant to identification — only the ring handle size distinguishes these scissors
Correct answer: The short, thick-bladed scissors are Mayo scissors used for heavy tissue and sutures; the long, slender-bladed scissors are Metzenbaum scissors used for fine dissection
Mayo scissors have short, heavy blades designed to cut dense tissue, fascia, and sutures, while Metzenbaum scissors have longer, more delicate blades for fine, sharp dissection of soft tissue. Mixing them up risks sending the wrong instrument to the surgical field.
Question 2: Which feature is the primary identifying characteristic of Backhaus towel clips, and what is their intended surgical purpose?
- Oval fenestrated jaws with a ratchet lock; used to grasp and hold gauze sponges on the surgical field
- Pointed, crossing tips with a ratchet lock; used to secure sterile drapes to the patient's skin or underlying drapes (Correct answer)
- Angled, serrated jaws; used to occlude blood vessels during vascular procedures
- Flat, smooth jaws with a box lock; used to hold tissue edges apart during wound closure
Correct answer: Pointed, crossing tips with a ratchet lock; used to secure sterile drapes to the patient's skin or underlying drapes
Backhaus towel clips are identified by their sharp, pointed tips that cross when closed and a ratchet locking mechanism. They pierce and grip draping material to keep it securely positioned. During inspection, CSSD technicians must verify that the tips are sharp, properly aligned, and that the ratchet engages at every position.
Question 3: A sponge-holding forceps (ring forceps) arrives in a general set for reprocessing. Which inspection criterion is most critical and unique to this instrument?
- The serrated jaw pattern must be confirmed as fine-toothed, and the box lock checked for side play
- The fenestrated oval or ring-shaped jaws must be fully open, free of debris, and the ratchet must hold securely at all positions so the gauze cannot be inadvertently released (Correct answer)
- The cutting edge must be re-sharpened after every five uses to maintain gauze retention
- The instrument should be inspected only visually; functional testing of the ratchet is not required for this instrument type
Correct answer: The fenestrated oval or ring-shaped jaws must be fully open, free of debris, and the ratchet must hold securely at all positions so the gauze cannot be inadvertently released
Sponge-holding forceps rely on their fenestrated jaws clamping gauze securely on the field; if the ratchet fails to hold, a sponge could be released unnoticed — a serious retained foreign body risk. Inspection must confirm clean open rings, no cracks in the fenestration, and a ratchet that engages positively at every tooth.
Question 4: How does a self-retaining retractor (such as a Weitlaner or Gelpi) differ from a handheld retractor (such as a Langenbeck), and what additional inspection step does the self-retaining type require?
- Self-retaining retractors have smooth blades and are lighter; no additional inspection is needed beyond checking blade integrity
- Self-retaining retractors incorporate a ratchet or spring mechanism that holds the retractor open without an assistant; the ratchet must be tested for smooth engagement and positive locking at each position (Correct answer)
- Handheld retractors always have finger rings, while self-retaining retractors never do; inspection steps are identical for both types
- Self-retaining retractors are single-use items and should not be reprocessed in CSSD
Correct answer: Self-retaining retractors incorporate a ratchet or spring mechanism that holds the retractor open without an assistant; the ratchet must be tested for smooth engagement and positive locking at each position
The defining feature of self-retaining retractors is a built-in ratchet or spring mechanism that maintains wound exposure without a dedicated surgical assistant. During CSSD inspection, technicians must open and close the ratchet through all positions to confirm it engages firmly and releases cleanly, as a failed ratchet can cause unexpected retractor collapse during surgery.
Question 5: A bone curette is returned to CSSD after an orthopaedic procedure. Which description correctly identifies this instrument, and what is the primary inspection concern?
- A bone curette has a straight, pointed tip used to drill pilot holes; inspect for tip sharpness only
- A bone curette has a spoon- or cup-shaped working end used to scrape bone and cartilage; inspect the cup edge for cracks, chips, or rolled edges that could shed metal fragments into the wound (Correct answer)
- A bone curette is a flat, chisel-edged instrument for splitting bone; inspect the handle for cracks
- A bone curette has a toothed jaw similar to a rongeur; inspect the hinge for alignment
Correct answer: A bone curette has a spoon- or cup-shaped working end used to scrape bone and cartilage; inspect the cup edge for cracks, chips, or rolled edges that could shed metal fragments into the wound
Bone curettes are characterised by their hollow, spoon-shaped or cup-shaped tip designed to scoop and scrape bone, cartilage, or soft tissue from a bony surface. Because the thin metal cup is subjected to high mechanical stress, CSSD inspection must focus on the cup rim for cracks, chips, or deformation that could leave metallic debris in the operative site.
Question 6: During decontamination sorting, a technician finds a suction instrument with a wide, bulbous, smooth tip alongside one with a narrow, angled metal tube. How should these be identified, and does their design affect reprocessing?
- Both are Frazier suction devices in different sizes; reprocessing is identical for both
- The bulbous-tipped instrument is a Yankauer (tonsil) suction used in oral and pharyngeal areas; the narrow angled tube is a Frazier suction used in confined spaces such as the ear or spine. Both require the lumen flushed under pressure and a stylet or pipe cleaner passed through to confirm patency (Correct answer)
- The narrow angled tube is a Poole suction for abdominal use; the bulbous tip is a Frazier suction. Only the Poole requires lumen flushing
- Suction instruments have no internal lumen and require only external surface cleaning; tip shape is purely a surgeon preference
Correct answer: The bulbous-tipped instrument is a Yankauer (tonsil) suction used in oral and pharyngeal areas; the narrow angled tube is a Frazier suction used in confined spaces such as the ear or spine. Both require the lumen flushed under pressure and a stylet or pipe cleaner passed through to confirm patency
The Yankauer (tonsil) suction is recognised by its bulbous, smooth tip and is used in the oral cavity and pharynx, while the Frazier suction has a narrow, angled metal tube suited to confined surgical fields. Because both are hollow, CSSD reprocessing must include pressurised lumen flushing during decontamination and a patency check (stylet or pipe cleaner) during inspection to ensure the internal channel is clear and unobstructed.
MDRAO - Medical Device Reprocessing Association of Ontario Instrument Identification 1
A CSSD technician is sorting a general surgery set and encounters two pairs of scissors — one with short, thick blades and one with long, slender blades.
Which statement correctly identifies these instruments?